POWER SUPPLY (5V)
NE555 IC
1 BUZZER
RESISTORS ( 1X 100K, 1X1K)
CAPACITOR (2.2uf)
Circuit Diagram
In this circuit 555 IC is used in astable mode.Implement this circuit on a general purpose PCB then attach wire ends to the wall of tank , at a desired level , whenever water level overflows this point circuit gets completed and buzzer is activated.
